23905-59-1

Upstream product

• 118-92-3 anthranilic acid 
• 13906-09-7 2-thioxo-2,3-dihydro-1H-quinazolin-4-one 
• 123217-05-0 3-Phenacyl-2-thionoquinazolin-4(3H)-one 
• 23905-58-0 2-[(2-oxo-2-phenylethyl)thio]quinazolin-4(3H)-one 
• 70-11-1 α-bromoacetophenone 
• 13906-09-7 2-mercapto-3H-quinazolin-4-one 

Downstream Products

• 1042-87-1 7-nitro-3-phenyl-thiazolo[2,3-b]quinazolin-5-one 
• 1035-42-3 7-bromo-3-phenyl-thiazolo[2,3-b]quinazolin-5-one 

Relevant academic research and scientific papers

Synthesis and antihypertensive activity of some quinazolinone derivatives

The fused 4(3H)-quinazolinone derivatives 4a-e were synthesized by treating 2-thioxo-1H,3H-quinazolin-4-one with halides. A preliminary pharmacological evaluation revealed that the compounds, 4b-4d act as antihypertensives in anesthetized rats at i.v. dos

Quinazolones: Part XIII - A New Approach to the Synthesis of Some Oxazolo- & Thiazolo-quinazolones

A new unambiguous route for the synthesis of hitherto unknown 3-aryl-oxazoloquinazolin-5-ones (6) and a new one-step route for the preparation of 3-arylthiazoloquinazolin-5-ones (7) involving intramolecular cycloaddition are described.